From: Jay Cornwall <jay@jcornwall.me>
To: "Kirill A. Shutemov" <kirill@shutemov.name>
Cc: linux-kernel@vger.kernel.org
Subject: Re: put_page on transparent huge page leaks?
Date: Sat, 22 Feb 2014 13:31:19 -0600 [thread overview]
Message-ID: <3104bf891faf02691e4f2e0de44a59a9@jcornwall.me> (raw)
In-Reply-To: <2f724688447dc8c8e599ff07fccb9fa4@jcornwall.me>
On 2014-02-22 11:44, Jay Cornwall wrote:
> On 2014-02-21 20:31, Kirill A. Shutemov wrote:
>> On Fri, Feb 21, 2014 at 11:23:39AM -0600, Jay Cornwall wrote:
>>> I'm tracking a possible memory leak in iommu/amd. The driver uses
>>> this logic
>>> to fault a page in response to a PRI from a device:
>
> The head page appears to be leaking a reference. There is *no leak* if
> the driver faults the head page directly.
My apologies, this was fixed somewhere in the patch series: "mm: tail
page refcounting optimization for slab and hugetlbfs" (Jan 22nd).
Our merge was slightly older than I'd thought.
prev parent reply other threads:[~2014-02-22 19:31 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-21 17:23 Jay Cornwall
2014-02-22 2:31 ` Kirill A. Shutemov
2014-02-22 17:44 ` Jay Cornwall
2014-02-22 19:31 ` Jay Cornwall [this message]
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